Stop-cock.



E. GRAY. STOP 000K. APPLICATION FILED APR. 20, 1914.

PatentedDec.22,191'4f l/IIIIII/l/I/ III! 3mm E RN E51- GRaY UNITEDSTATES PAZEENT' OFFICE.

ERNEST GRAY, 0F LOGAN, UTAH.

STOP-COCK.

Application filed April 20, 1914. Serial No. 833,225.

class of cocks which are provided with re- 1 ciprocating valves.

An object of this invention is the provision of a stop cock of thischaracter in which the valve thereof will not be jarred from its seatowing to vibrations, the valve being maintained tightly against its seatby the tension of its spring and being readily removable from its seatagainst the tension of the spring.

A further object of this invention is the provision of a stop cock inwhich is mounted a spring pressed reciprocating valve, means. beingprovided to maintain the valve in open position against the tension ofits spring.

With these and other objects in view, my invention consists in the novelconstruction, combination, and arrangement of parts to be hereinaftermore fully described, claimed, and illustrated in the accompanyingdrawing, in which,

Figure 1 is a vertical sectional view of my improved stop cock. Fig. 2is a fragmentary elevational view showing the valve stem in itsinnermost position. Fig. 3 is a fragmentary elevational view showing thevalve stem in its outermost position. Fig. 4 is a sectional view on theline 44 of Fig. 1. Fig. 5 is a section taken on the line 55 offieferring'more particularly to the drawing, the numeral 1 designatesthe body of the valve which is provided with a longitudinal bore 2extending entirely therethrough, the body being threaded at its innerend for engagement in an opening in a tank or other suitable connection(not shown).'

The body is formed in one side thereof with a transverse opening 3 whichcommunicates at its inner end with the bore 2, the opening being reducedadjacent its inner end to form a shoulder 4. The outer end of theopening 3 is threaded, and threadably mounted in the threaded portion ofthe opening 3 is a tubular guide sleeve 5, the shoulder 4 being adaptedto limit the inward movement of the sleeve within the body of the cook.The outer end of the guide member 5 is closed, the closed end thereofbeing provided with a central opening 6, and slidably mounted in theguide member is a -valve -which has a valve stem 8 projecting outwardlytherefrom, the outer end of the valve stem belng slidably disposedthrough the opening 6 in the outer wall of the guide member, and isformed with a shoulder 9 intermediate of its ends which is adapted forengagement with the end wall of the guide member to limit the outwardmove- Specification of Letters Patent. Patented Dec, 22, 1914.

opening 3 in the body is a valve seat 10 with which the inner end of thevalve 7 is adapted to engage to close the bore 2 in the body. A chamber11 is formed in the inner end of the valve, the chamber being adapted toof the valve, the valve may be quickly closed against the pressure ofthe liquid between the same and its valve seat as the liquid disposedbetween the inner end of the valve and its seat as the valve is closed,may pass directly into the chamber so that the valve may-quickly engagethe seat without being' retarded by the liquid as it otherwise would bein case the inner end of the valve were solid. Formed in the valve '7 isa peripheral groove 13 in which a packing ring 14 is mounted to providea tight joint between the valve and the inner wall of the guide member5.-

A coiled expansion spring 15 is mounted. in the tubular member 5outwardly of the valve, the outer end of the spring engaging the endwall of the guide member and the inner end of thespring engaging theouter end of the valve to normally force the same inwardly to engage itsseat 10. Surrounding the outer end of the guide member 5 is a sleeve'16,the outer end .of which is provided with an inwardly extending flange 17the inner edge of the flange engaging in an annular groove 18 in thestem 8 adjacent its outer extremity, whereby the sleeve 16 is fastenedto the stem to move outwardly and inwardly with the same. A finger ring19 is loosely connected to the projecting extremity of the stem 8whereby the same may be readily moved outwardly to \remove the valvefrom engagement with its valve seat 10. The tubular guide member 5' isformed with an outwardly punched bead or projection 20, and the sleeve16 is formed with a longitudinal groove 21 which extends from a pointintermediate of the ends of the sleeve to the inner end thereof, thegroove being formed by crimping a portion of the sleeve outwardly and isadapted for slidable engagement with the bead when the same is in itsinnermost position,

In the practical use of my device, the valve 7 is normally initsinnermost position against its seat 10 to cut off the flow of liquidthrough the cock; and when it is desired to allow the liquid to passthrough the cock, the finger piece 19 is grasped and pulled outwardly toremove the valve from engagement with its seat against the tension ofthe spring 15. Upon release of the finger piece 19, the valve will beimmediately closed by the expansion of the spring 15 and the valve isheld in this position until the finger piece. 19 is again pulledoutwardly. If it is desired to hold the valve "in openposition, thevalve stem is moved outwardly until the shoulder 9 thereof engages theouter wall of the guide member 5, and in this position, the inner edgeof the sleeve 16 is disposed outwardly of the bead 20 on the member 5,so that upon rotation ,of the ring 19, the sleeve is also rotated byreason of its rigid connection to the stem to move the crimped portion21 of the sleeve out of longitudinal alinement with the bead, wherebyupon release of the ring 19, the inner edge of the sleeve engages thebead to hold the stem in its outermost position and the valve 7 inspaced relation from its seat. When it is desired to close the valve itis only necessary to rotate the ring 19 until the slot is againin'alinement with the head 20 so that uponrelease of the finger piece19, the valve is forced inwardly upon its seat by the spring 15.

Having thus fully described my invention, what I desire to secure andclaim by Letters Patent is :-v

1. A stop cock comprising a body having a longitudinal bore extendingtherethrough, said body having a transverse threaded opening in one sidethereof communicating with said bore, a tubular guide member threadablymounted in said opening, said body having a valve seat formed therein at'a point diametrically opposite the transverse opening, a spring pressedvalve slidably mounted in said guide member for engagement with thevalve seat, a valve stem carried by the valve and projecting throughsaid guide member, an outwardly projecting bead formed on said guidemember, a sleeve carried by the projecting portion of the stem andadapted to surround the outer end of the guide member, said sleevehaving an outwardly crimped longitudinal groove formed therein whichextends from a point intermediate of the ends of the sleeve to the inneredge thereof, saidbead being disposed within said groove when the valveis in closed position, and the sleeve being adapted for rotation todispose the inner edge of the sleeve against the bead when the valve isin open position.

2. A stop cock comprising a body having a longitudinal bore extendingtherethrough, said body having an opening in one side thereofcommunicating with said bore, the body having a valveseat formed thereinat a point diametrically opposite the transverse opening, a tubularguide member mounted in said opening, a spring pressed valve slidablymounted in said guide member for engagement against the seat, a valvestem carried by said valve and projecting through said guide member, theprojecting portion of said valve stem having an annular groove formedtherein, a sleeve surrounding said guide member and having an inwardlyextending flange formed on its outer end, the inner edge of said flangebeing engaged in said annular groove, whereby upon movement of the valvestem the sleeve is carried therewith, and means formed on said guidemember for engagement with the inner edge of said sleeve to hold thevalve in open position against the action of its spring.

In testimony whereof I hereunto afix my signature in the presence of twowitnesses.

ERNEST GRAY. Witnesses:

GEORGE D. CARBON, Mosns G. CARDoN.

